On Tue, 10 Aug 2010 15:16:23 +0100, <Bill(_dot_)Oxley(_at_)cox(_dot_)com> wrote:
Should DKIM transit a mailing list?
if a message arrives at a list manager the author/sender theoretically
should be a pre-qualified by whatever means used to be a member of that
Not necessarily so. There exist lists to which anyone may post (and in
which actual subscription is by invitation).
Any recipient that has subscribed to that list has a reasonable
expectation that any message addressed to the list would be interesting.
With that in mind all signatures should be discarded, resigned by the
dkim aware mailing list then forwarded on as if it is a "new" mail
I agree about the "new" mail message, but how do subsequent agents as the
forwarded mail is propagated "know" that it is new, unless the From: is
changed? To them, it is indistinguishable from a mail from someone at the
original discardable domain.
Note than you cannot assume the ultimate recipient is in a position to
identify special cases that apparently are unsigned emissions from a
discardable domain. Our normal expecation is that will be done by his
boundary ISP (where his mailbox is likely to be kept).
Charles H. Lindsey ---------At Home, doing my own thing------------------------
Tel: +44 161 436 6131
Email: chl(_at_)clerew(_dot_)man(_dot_)ac(_dot_)uk Snail: 5 Clerewood Ave, CHEADLE, SK8 3JU, U.K.
PGP: 2C15F1A9 Fingerprint: 73 6D C2 51 93 A0 01 E7 65 E8 64 7E 14 A4 AB A5
NOTE WELL: This list operates according to